Rotary engine.



Q/vi'h 1-0 0000 1. E. CHRISTENSEN.

ROTARY ENGINE. 4 APPLICATION FILED v1.2. 1915.

Patented May 25, 1915,

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3. E. CHRISTENSEN.

ROTARY ENGINE.

APPUCATION HLED m4. 2. ms.

1 @Gfifigl Pmnm May 25, 191-5.

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"RG'L'ABY ENGINE.

implication filed. January 2, 1915.

To all whom it may concern: w

Be it known that l, JOl-IANNEb flint Cmns'inNsnN, a subject of the King of Donmark, residing at Everett, in the-county of Snohomish and State of ashing-ton, have invented certain new and useful Improvements in Rotary Engines, of which the "following is a specification.

My invention relates to improvements in tluid pressure operated rotary engines or turbines, adapted for driving a rotatable cutting element, while not necessarily re stricted to such use.

An important obj ect of the invention is to provide apparatus of the above mentioned character, which has its operating parts so disposed that the same are balanced, more or less. whereby the apparatus may be conveniently bodily moved or handled by a single operator.

A further object of the invention is to rovidc apparatus of the above mentioned (3 raracter, which is simple in construction, light, durable, and inexpensive to manufacture.

A further object of the invention is to provide apparatus of the above mentioned character, formed of few and simple parts which may be readily detached and assembled, "for the'purpose of shipment and use,

V respectively.

ther objects and advantages of the invention will he "apparent during the course of the following description.

In the accompanying drawings forming a part oi this specification and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a side elevation of apparatus embodying my invention. parts being shown in section, Fi 2 is a plan view of the same, parts being shown in section. and, Fig. 3 is a transverse sectional view taken on line 33 of Fig. 2. in the drawings. wherein for the purpose of illustration is shown a preferred embodi- :ncnt of my invention. the numeral 5 designatcs a tubular handle, having connection with a flexible hose or the like (not shown) ahrough which is supplied fluid pressure,

such as compressed air or steam. This tubu-' lar handle is provided with a valve structure i3, comprising a movable valve 7, normally lzeld in the closed position by a'spring 8, and adapted to he opened by a hand lever 9. his hand lever is pivoted at vith the :ndle 5 and is arranged near and extends Er l eigitudinally ot the handle to be conven Specification of Letters latent.

Patented $o, ill

Serial Etc. 302.

formed upon the opposite sides off-n portion 14E of the tubular handle 5, such portion being preferably formed square in cross-section, as clearly illustrated in Fig. this manner, the tubular arms 11 are securely tached to the tubular handle and many removed therefrom, when it is desired to separate the several parts of the appsratus and pack the same in a small space, purpose of shipment- Means lire provided to clamp the ends of the tubular arms 11 the portion 1 of the handle 5-, to? prevent ing longitudinal movement of the arm with relation to the handle 5, comprising preferably loop haped open frame 15, adapted to be conveniently psssedover the ends of the tubular arms 11 and the portion 1 At one end, this clamping frame 15 is provided with an opening 16, and carries spaced knuckles 17, receiving therebetween locking cam 18, having pivotal connection therewith by means or a pintle 19, A. lever or finger issecured to the locking to move the same to the active and inactive positions. Rigidity connected with the opposite endot the clamping frame 15 is a handle or hand grip 21, by means of which the epparatus may be conveniently handled, From the foregoing description it is obvious that the handle 21, tubular handle 5, and tubular arms 11 may all be readily separated for the to v end arranged between spaced lugs 29 carried by the casing-section and pivoted thereto by means of a pintlc 80, as shown. it is obvious that by proper manipulation of the thumb nut 28, the casing-section Bl may be swung forwardly and downwardly with respect to the easing-section 23. The bore of the tubular arm 11 has free communication with the interior of the casingsection 23 and the casing-section 24 has an exhaust port or conduit 2i.

Rotatably and removably mounted within the turbine casings 22 are turbine rotors 3i: removably mounted upon reduced ends 3'2 of a transverse shaft 33. but incapable of rotating with relation thereto whereby the rotation of the turbine rotors effects a eorresponding rotation of the shafts 33. The inner sides of the turbine casing 22 are provided with bearing-boxes 34, formed in semi-cylindrical part-s, whereby the same are opened when the turbine casings 2-1 are swung forwardly. Ball-bearings are held Within the bearing-boxes 34 and rotatably receive and hold the shaft removably and rigidly connected therewith. I have shown this rotatable cutting element in the form of a wood saw, but it is not desired to restrict the invention to any particular type of rotatable cutting element, as a wood plane, an iron cutting saw, and other rotatable cutting elements may be connected therewith, and operated thereby.

As more clearly shown in Figs. 1 and 2,

v tion 24;. It is obvious that by proper inanipulation of the bolt lO, the guide or gage 23-7 may be longitudinally adjusted with respect to the casingsection Q3 and locked in adjustment at the desired longitudinal p0- sition.

The operation of the apparatus is as follows z-The operator preferably holds the tubular handle 5 in the left hand while the hand grip 27 is held in the right hand, thus enabling the apparatus to be readily shifted or moved from one position to the other. The disposition of the turbines upon opposite sides of the rotatable cutter, serve to evenly distribute the veight of the apparatus sothatthe same 1s balanced and is .nu re convenient 'ttwhandlc. The lever 9 may be conveniently swung toward the tubular handle by pressure of the finger or fingers thereon, whereby the fluid pressure uch as compressed air or steam, is fed "through the tubular arms llinto the casings The .shaft 33 has a rotatable cutting element 36 the apparatus are readily detachable-for the purpose of shipment. liy moving the eas- 1ng-sections 9% to the openposition the tur- 7 bine rotors 31 may be readily. .removed therefrom. subsequently to which;v they may be removed from the shaft 323. Adiilerent rotatable cutter such as a plane or iron cutting saw may now be applied to this shaft and the-turbine rotors 31 again secured to the shaft. The turbine rotors are returned to the position Within thecasin fsections 28 and the casing-sections 2-111 moved to the closed position and locked therein.

It is to be understood that the form of my invention herewith shown and described is to be taken as a-preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined claims. 7

Having thus described my invention, What I claim is: l V

1. In an engine of the character described, a handle carrying spaced arms, turbine casings secured to the arms, turbine rotors disposed within the casings, a' transverse shaft disposed between the spaced arms and secured'to the rotors, a rotatable element carried by thetransverse shaft, and means for supplying fluid pressure to the turbine ca"- ings.

2. In an engine of the character described, a tubular handle carrying. spaced tubular arms. turbine casings secured to the spaced bine casings secured to the spaced tubular arms and receiving fluid pressure therefrom, turbine rotorsarranged Within the casings, a transverse shaft disposed between the tubular arms and connected with the rotors, and a rotatable element connected with the transverse shaft.

a. In an engine of the character described, a tubular handle, spaced tubular arms having detachable engagement with the tubular handle, a transverse handle tachable clamping means receiving and carrying de- 

